上海辰華CHI600E系列電化學工作站

上海辰華儀器有限公(gong)司成立(li)于(yu)1998年，與美(mei)國(guo)(guo)CH Instruments公(gong)司合作(zuo)，以專業生產電化學(xue)分(fen)析儀/工作(zuo)站產品為主(zhu)，引進(jin)美(mei)國(guo)(guo)CHI公(gong)司的技術，在國(guo)(guo)內進(jin)行組裝(zhuang)生產及銷售。主(zhu)要(yao)服務于(yu)國(guo)(guo)內。  

CHI600E系列電化學工作站

CHI600E系(xi)列為(wei)通(tong)(tong)用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)化(hua)學測(ce)(ce)量(liang)(liang)(liang)系(xi)統。下圖(tu)為(wei)儀(yi)(yi)器(qi)(qi)(qi)的(de)(de)(de)硬(ying)件(jian)結構示意圖(tu)。儀(yi)(yi)器(qi)(qi)(qi)內含快(kuai)速(su)(su)數(shu)(shu)字(zi)(zi)信(xin)(xin)(xin)號(hao)發生器(qi)(qi)(qi)，用(yong)(yong)于(yu)(yu)高(gao)(gao)(gao)頻(pin)(pin)交流(liu)(liu)(liu)(liu)阻抗(kang)測(ce)(ce)量(liang)(liang)(liang)的(de)(de)(de)直(zhi)接(jie)數(shu)(shu)字(zi)(zi)信(xin)(xin)(xin)號(hao)合成器(qi)(qi)(qi)，雙(shuang)通(tong)(tong)道(dao)高(gao)(gao)(gao)速(su)(su)數(shu)(shu)據采(cai)集系(xi)統，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位(wei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)信(xin)(xin)(xin)號(hao)濾波(bo)器(qi)(qi)(qi)，多級(ji)信(xin)(xin)(xin)號(hao)增(zeng)益，iR降補償電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路，以及恒電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位(wei)儀(yi)(yi)／恒電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)儀(yi)(yi)（660E）。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位(wei)范(fan)圍(wei)為(wei)±10V，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)范(fan)圍(wei)為(wei)±250mA。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)測(ce)(ce)量(liang)(liang)(liang)下限(xian)低于(yu)(yu)10pA。可(ke)(ke)(ke)(ke)直(zhi)接(jie)用(yong)(yong)于(yu)(yu)超微(wei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)上的(de)(de)(de)穩態(tai)(tai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)測(ce)(ce)量(liang)(liang)(liang)。如果與(yu)CHI200B微(wei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)放大(da)(da)(da)器(qi)(qi)(qi)及屏蔽箱連接(jie)，可(ke)(ke)(ke)(ke)測(ce)(ce)量(liang)(liang)(liang)1pA或更(geng)低的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)。如果與(yu)CHI680C大(da)(da)(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)放大(da)(da)(da)器(qi)(qi)(qi)連接(jie)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)范(fan)圍(wei)可(ke)(ke)(ke)(ke)拓(tuo)寬(kuan)為(wei)±2A。CHI600E系(xi)列也是十分快(kuai)速(su)(su)的(de)(de)(de)儀(yi)(yi)器(qi)(qi)(qi)。信(xin)(xin)(xin)號(hao)發生器(qi)(qi)(qi)的(de)(de)(de)更(geng)新速(su)(su)率(lv)為(wei)10MHz，數(shu)(shu)據采(cai)集采(cai)用(yong)(yong)兩個同(tong)(tong)(tong)步(bu)16位(wei)高(gao)(gao)(gao)分辨(bian)低噪聲的(de)(de)(de)模數(shu)(shu)轉換器(qi)(qi)(qi)，雙(shuang)通(tong)(tong)道(dao)同(tong)(tong)(tong)時采(cai)樣(yang)的(de)(de)(de)最高(gao)(gao)(gao)速(su)(su)率(lv)為(wei)1MHz。雙(shuang)通(tong)(tong)道(dao)同(tong)(tong)(tong)步(bu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位(wei)采(cai)樣(yang)可(ke)(ke)(ke)(ke)加快(kuai)阻抗(kang)測(ce)(ce)量(liang)(liang)(liang)的(de)(de)(de)速(su)(su)度(du)。某些實(shi)驗(yan)(yan)方法(fa)的(de)(de)(de)時間尺度(du)可(ke)(ke)(ke)(ke)達十個數(shu)(shu)量(liang)(liang)(liang)級(ji)，動態(tai)(tai)范(fan)圍(wei)極(ji)為(wei)寬(kuan)廣(guang)。循環伏(fu)安法(fa)的(de)(de)(de)掃(sao)描速(su)(su)度(du)為(wei)1000V/s時，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位(wei)增(zeng)量(liang)(liang)(liang)僅0.1mV，當掃(sao)描速(su)(su)度(du)為(wei)5000V/s時，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位(wei)增(zeng)量(liang)(liang)(liang)為(wei)1mV。又如交流(liu)(liu)(liu)(liu)阻抗(kang)的(de)(de)(de)測(ce)(ce)量(liang)(liang)(liang)頻(pin)(pin)率(lv)可(ke)(ke)(ke)(ke)達1MHz，交流(liu)(liu)(liu)(liu)伏(fu)安法(fa)的(de)(de)(de)頻(pin)(pin)率(lv)可(ke)(ke)(ke)(ke)達10KHz。儀(yi)(yi)器(qi)(qi)(qi)可(ke)(ke)(ke)(ke)工作于(yu)(yu)二，三，或四(si)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)的(de)(de)(de)方式。四(si)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)可(ke)(ke)(ke)(ke)用(yong)(yong)于(yu)(yu)液/液界(jie)面電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)化(hua)學測(ce)(ce)量(liang)(liang)(liang)，對于(yu)(yu)大(da)(da)(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)或低阻抗(kang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)解池（例(li)如電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池）也十分重要，可(ke)(ke)(ke)(ke)消除(chu)由(you)于(yu)(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)和接(jie)觸電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻引起的(de)(de)(de)測(ce)(ce)量(liang)(liang)(liang)誤(wu)差。儀(yi)(yi)器(qi)(qi)(qi)還有外部信(xin)(xin)(xin)號(hao)輸入(ru)通(tong)(tong)道(dao)，同(tong)(tong)(tong)步(bu)16位(wei)高(gao)(gao)(gao)分辨(bian)采(cai)樣(yang)的(de)(de)(de)最高(gao)(gao)(gao)速(su)(su)率(lv)為(wei)1MHz。可(ke)(ke)(ke)(ke)在記錄電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)化(hua)學信(xin)(xin)(xin)號(hao)的(de)(de)(de)同(tong)(tong)(tong)時記錄外部輸入(ru)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)信(xin)(xin)(xin)號(hao)，例(li)如光譜信(xin)(xin)(xin)號(hao)等。這對光譜電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)化(hua)學等實(shi)驗(yan)(yan)極(ji)為(wei)方便。

CHI600E系列硬件采用了高速的處理器，快速的放大器，快速的模數轉換器和數模轉換器。計時電量法加上了模擬積分器。一個16位高分辨高穩定的電流偏置電路以達到電流復零輸出，亦可用于提高交流測量的電流動態范圍。高分辨的模數轉換器具有更好的信噪比，也給出了靈敏度設置的更大動態范圍。

CHI600E系(xi)列儀器(qi)的(de)內部控(kong)制程序采用了(le)FLASH存儲器。儀器軟件的更新不再需要通過(guo)郵寄并(bing)更換(huan)EPROM，而可以通過網絡進行傳送并通過程序命令寫入。這使得軟件更新更加快捷方便。

CHI600E系列還允許升級為雙恒電(dian)(dian)位儀。新的設計通(tong)過增加一塊第(di)二通(tong)道的電(dian)(dian)位控制(zhi)，電(dian)(dian)流(liu)電(dian)(dian)壓(ya)轉換，多級增益和低通(tong)濾波器的電(dian)(dian)路(lu)板，便成了CHI700E系列的雙恒電(dian)(dian)位儀。

CHI600E系列儀(yi)器(qi)集成了(le)(le)幾(ji)乎所有(you)常(chang)用(yong)的電化學測量技術。為了(le)(le)滿足不(bu)同的應(ying)用(yong)需要以及(ji)經費條件，CHI600E系列分(fen)成多種型號。不同的(de)(de)型號具有不同的(de)(de)電化學測(ce)量技術和功能，但基本(ben)的(de)(de)硬件參(can)數指標和軟件性能是相同的(de)(de)。CHI600E和(he)CHI610E為基本型，分(fen)(fen)別(bie)用(yong)于機理研究和(he)分(fen)(fen)析(xi)應(ying)用(yong)。它們也是十分(fen)(fen)優良的(de)教學(xue)儀器。CHI602E和CHI604E可用于腐蝕研究。CHI620E和(he)CHI630E為綜合電化學(xue)分(fen)析(xi)儀(yi)，而(er)CHI650E和CHI660E為更好(hao)的電化學工(gong)作站。

CHI600E 系 列(lie) 電(dian) 化 學 分 析 儀(yi) / 工 作 站 的 框 圖

硬件參數指標：

恒(heng)電位儀/雙恒(heng)電位儀

·  零阻電流(liu)計(ji)

·  2，3，4電(dian)極結構

·  浮動地線(xian)或實地

·  兩個通道最大電位范(fan)圍： ±10 V

·  最大電流：±250 mA 連續（兩個(ge)通道電(dian)流(liu)之(zhi)和）, ±350 mA 峰值(zhi)

·  槽壓：±13 V

·  恒電位(wei)儀(yi)上升時間： 小于 1 ms, 通常 0.8 ms

·  恒電位儀帶寬（-3分貝(bei)）：1 MHz

·  所(suo)加電位范圍：±10 mV, ±50 mV, ±100 mV, ±650   mV, ±3.276 V, ±6.553 V, ±10 V

·  所加電(dian)(dian)位分辨：電(dian)(dian)位范圍的0.0015%

·  所加電(dian)位準確度： ±1 mV,±滿量程的(de)0.01%

·  所加電位噪聲(sheng)：< 10 mV 均方根植

·  測量電流范圍：±10 pA 至 ±0.25 A， 12量程

·  測量(liang)電(dian)(dian)流分(fen)辨：電(dian)(dian)流量(liang)程的0.0015%，zui低 0.3 fA

·  電(dian)流(liu)測量準確度(du)：電(dian)流(liu)靈敏(min)度(du)大(da)于(yu)等于(yu)1e-6 A/V時為0.2%，其他量程(cheng)1%

·  輸入(ru)偏置電(dian)流(liu)：< 50 pA

恒電流(liu)儀(yi)

·  恒電流范圍： 3 nA – 250 mA

·  所加電流準(zhun)確度：如果電流大于 3e-7A時為0.2%，其他范圍為1%，±20 pA

·  所加電流分辨率：電流范圍的0.03%

·  測量電位范圍： ±0.025V， ±0.1V， ±0.25V， ±1V，   ±2.5V， ±10V
·  測量(liang)電位分辨率：測量(liang)范圍(wei)的0.0015%

Electrometer:  電位計(ji)

·  參比電極輸(shu)入阻抗：1e12 歐(ou)姆(mu)

·  參比電(dian)極輸入(ru)帶寬： 10 MHz

·  參比電極輸入偏置電流：<= 10 pA @ 25°C

波形發生(sheng)和數據(ju)獲得系統(tong)

·  快速信號發生更新速率：10 MHz， 16位(wei)分辨

·  快速數據采集系統：16位分(fen)辨，雙通(tong)道同步采(cai)樣(yang)，采(cai)樣(yang)速(su)率每秒(miao)1,000,000 點

·  外(wai)部信號記錄通道(dao)最高采樣速率1M Hz

·  可拓展掃描電(dian)化學顯微鏡功能

附件

·電極(ji)線

·USB通訊線

·電源線

實驗(yan)參數(shu)

·  CV和LSV掃描速度(du)：  0.000001V/s 至 10,000 V/s，雙通道(dao)同步掃描及采樣(yang)至10,000 V/s

·  掃描時的電位增量(liang)：0.1 mV （當掃速為(wei) 1,000 V/s時）

·  CA和CC的脈沖(chong)寬度： 0.0001 至(zhi)   1000 sec

·  CA的最小(xiao)采樣間(jian)隔： 1 ms， 雙通道同(tong)步

·  CC的(de)最(zui)小采樣間隔： 1 ms

·  CC模(mo)擬積分器(qi)

·  DPV和NPV的脈沖寬度：0.001   至 10 sec

·  SWV頻(pin)率(lv)： 1 至   100 kHz

·  i-t 的最小采樣間隔： 1 ms， 雙通道同步

·  ACV頻率范圍：0.1 至 10   kHz

·  SHACV頻率范圍：0.1 至 5 kHz

·    FTACV頻率范圍：0.1 至 50Hz，可同時獲取基波(bo)，二次(ci)諧(xie)波(bo)，三次(ci)諧(xie)波(bo)，四次(ci)諧(xie)波(bo)，五(wu)次(ci)諧(xie)波(bo)，六次(ci)諧(xie)波(bo)的ACV數(shu)據

·  交流阻抗(kang)： 0.00001 至 1 MHz

·  交(jiao)流阻抗波形幅度： 0.00001 V 至 0.7 V 均方根值

其他特(te)點

   ·  自(zi)動或手動iR降補償(chang)

·  電流測量偏置(zhi)：滿量程，16位(wei)分辨，0.003% 準確度(du)

·  電(dian)位測(ce)量偏置：±10V，16位(wei)分辨，0.003% 準確度

·  外部電位輸(shu)入

·  電(dian)(dian)位(wei)和(he)電(dian)(dian)流的模擬(ni)輸出

·  可控電位濾波器的截止頻率： 1.5 MHz, 150 KHz, 15   KHz, 1.5 KHz, 150 Hz, 15 Hz, 1.5 Hz, 0.15 Hz

·  可控信(xin)號濾波(bo)器(qi)的截止頻率(lv)： 1.5 MHz, 150 KHz, 15   KHz, 1.5 KHz, 150 Hz, 15 Hz, 1.5 Hz, 0.15 Hz

·  旋轉電極控制電壓輸出：0-10V 對用于 0-10000 rpm的轉速，16位(wei)分辨(bian)，0.003% 準確度，需要(yao)某些旋轉電(dian)極裝置才能工作

·  通過宏(hong)命令可以(yi)控制(zhi)數(shu)字輸入輸出線

·  內閃(shan)存儲器可迅速更新程(cheng)序

·  USB口數據(ju)通訊

·  電解(jie)池控制：通(tong)氮，攪拌，敲擊（需要(yao)特殊電解(jie)池系統）

·  CV數字模擬器和擬合器。用戶定義反(fan)應(ying)機(ji)理（CHI730E以(yi)上）或預定(ding)義反應機理（其他型號）

·  交流(liu)阻抗模擬器(qi)和擬合器(qi)（具有交流(liu)阻抗測量功能的(de)型號）

·  最大數(shu)據長度：256,000-16,384,000 點可選擇

·  儀(yi)器尺寸(cun)： 37 cm (寬(kuan)) ′ 23   cm (深) ′ 12   cm (高)

CHII600E系列儀器不同型號的比較：

注(zhu)： 包(bao)括(kuo)相應的(de)(de)極譜法和溶出(chu)伏安法。用于極譜法時需要特(te)殊的(de)(de)靜汞電極或敲擊器。黑點對應該型號能(neng)滿足的(de)(de)功能(neng)。

*：價格不(bu)包括計算機。儀器(qi)的保(bao)修(xiu)期為一年。